/*
 * Copyright (c) 2013, marco.tamburelli@gmail.com
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met: 
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.bmi.gwt.mi.client.impl;

import java.util.HashMap;

import org.bmi.gwt.mi.shared.communication.var.ObjectVar;
import org.bmi.gwt.mi.shared.communication.var.ReturnVar;
import org.bmi.gwt.mi.shared.exceptions.InvalidArgumentException;
import org.bmi.gwt.mi.shared.util.ObjectWrapper;

/** For internal use */
public class ParamConverter
{
	public static Object convertParameter(HashMap<String, ObjectWrapper> objectMap, Object v)
			throws InvalidArgumentException
	{
		if (v instanceof ObjectVar)
		{
			ObjectVar oVar = (ObjectVar) v;
			String objectId = oVar.getObjectId();

			ObjectWrapper wrapper = objectMap.get(objectId);
			if (wrapper == null)
				throw new InvalidArgumentException("The received object ID '" + objectId
						+ "' was never register on this client");

			return wrapper.getInstance();
		}
		else
			return v;
	}

	public static Object convertParameter(HashMap<String, Object> returnValueMap,
			HashMap<String, ObjectWrapper> objectMap, Object v) throws InvalidArgumentException
	{
		if (v instanceof ReturnVar)
		{
			ReturnVar<?> rVar = (ReturnVar<?>) v;
			return returnValueMap.get(rVar.getReturnId());
		}
		else if (v instanceof ObjectVar)
		{
			ObjectVar oVar = (ObjectVar) v;
			String objectId = oVar.getObjectId();

			ObjectWrapper wrapper = objectMap.get(objectId);
			if (wrapper == null)
				throw new InvalidArgumentException("The received object ID '" + objectId
						+ "' was never register on this client");

			return wrapper.getInstance();
		}
		else
			return v;
	}
}
